• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Soil carbon mineralization by priming effect: Temperature sensitivity mechanism of soil carbon mineralization

Research Project

Project/Area Number 17K00524
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Environmental dynamic analysis
Research InstitutionThe University of Shiga Prefecture

Principal Investigator

IIMURA YASUO  滋賀県立大学, 環境科学部, 講師 (80599093)

Co-Investigator(Kenkyū-buntansha) 泉津 弘佑  滋賀県立大学, 環境科学部, 講師 (20579263)
藤嶽 暢英  神戸大学, 農学研究科, 教授 (50243332)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords温暖化 / 土壌 / 炭素 / プライミング効果 / 炭素安定同位体比 / 土壌微生物 / 土壌炭素 / 窒素沈着 / 地球温暖化 / 化学構造 / 微生物
Outline of Final Research Achievements

The response of soil organic carbon (SOC) to global warming is a crucial subject. Changes in the mineralization of native SOC, i.e., priming effect” (PE) may strongly affect the temperature sensitivity of SOC turnover in the presence of global warming. We investigated the temperature sensitivity of SOC in a Japanese volcanic ash soil considering PE phenomenon. We found that soil-originated CO2 emission clearly increased with increasing temperature on the assumption that the temperature and substrate supply increase at the same time. These results suggest that not only the temperature increase but also the labile carbon supply may be important for the temperature sensitivity of Japanese volcanic ash soil.

Academic Significance and Societal Importance of the Research Achievements

土壌は陸域最大の炭素貯蔵庫であるため、温暖化の進行にともなう土壌炭素の分解量の増減は温暖化の行方にも大きな影響を及ぼす可能性がある。そのため、土壌炭素の温暖化応答を理解することは重要な研究課題となっている。本研究では温暖化に伴って土壌への影響が強くなり得る植物由来の炭素供給に着目しこれらの影響に伴う土壌炭素分解量の変化を考慮した温暖化応答を評価した。その結果、植物の影響評価の有無によって温暖化に伴う土壌炭素分解量は大きく変化する可能性を見出した。これらの成果は今後の温暖化に伴う土壌応答予測にとっても重要な知見になり得る。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2019 2018 2017

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (3 results)

  • [Journal Article] 冷温帯落葉広葉樹林における林床ササ群落(Sasa senansis)の有無が火山灰土壌の窒素無機化に及ぼす影響2019

    • Author(s)
      飯村康夫・森田悠介・大塚俊之
    • Journal Title

      日本土壌肥料学雑誌

      Volume: 90 Pages: 381-385

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 大白川ブナ・ミズナラ成熟林(old-growth forest)における土壌窒素無機化速度の空間変動解析2019

    • Author(s)
      飯村康夫・Vilanee Suchewaboripont・廣田充・吉竹晋平・大塚俊之
    • Journal Title

      日本土壌肥料学雑誌

      Volume: 90 Pages: 415-423

    • NAID

      130007762547

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Soil carbon stocks and their primary origin at mature mangrove ecosystems in the estuary of Fukido River, Ishigaki Island, southwestern Japan2019

    • Author(s)
      Iimura Y, Kinjo K, Kondo M, Ohtsuka T
    • Journal Title

      Soil Science and Plant Nutrition

      Volume: 65 Issue: 5 Pages: 435-443

    • DOI

      10.1080/00380768.2019.1660589

    • NAID

      210000157104

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Priming effect of the addition of maize to a Japanese volcanic ash soil and its temperature sensitivity2019

    • Author(s)
      Iimura Y, Tabara I, Izumitsu K, Fujitake N
    • Journal Title

      Soil Science and Plant Nutrition

      Volume: 65 Issue: 5 Pages: 444-450

    • DOI

      10.1080/00380768.2019.1665969

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Priming effect of Miscanthus sinensis derived biochar on brown forest soil.2019

    • Author(s)
      Iimura, Y., Natsuhara, M., Ohtsuka, T., Tomotsune, M., Yoshitake、S., Koizumi, H.
    • Journal Title

      Soil chemistry and soil mineralogy

      Volume: 65 Issue: 6 Pages: 550-556

    • DOI

      10.1080/00380768.2019.1672101

    • NAID

      210000157215

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 火山灰土壌におけるプライミング効果の温度依存性2019

    • Author(s)
      飯村康夫・田原一聖・泉津弘佑・藤嶽愓英
    • Organizer
      日本土壌肥料学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] バイオチャー の添加に伴う土壌有機物分解速度変化2018

    • Author(s)
      飯村康夫・夏原政明
    • Organizer
      日本腐植物質学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 土壌深層でのプライミング効果:セルロース添加に伴う火山灰土壌層の応答を例に2017

    • Author(s)
      飯村康夫・小林美春
    • Organizer
      日本土壌肥料学会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi